tornevalls-resurs-bank-payment-gateway-for-woocommerce

Pull request #48: [RWC-164] Fix #12.

Merge in WWW/tornevall-networks-resurs-bank-payment-gateway-for-woocommerce from features/RWC-164-gh12 to master

* commit '9f60f1c2ba33a19410cd5821cc3dfbb7d8563f93':
  Always count data if it is empty and not null. Non existing data (v1) is not affected.
  Added docblock-since.
  [RWC-164] Fix #12.